Apparatus for treating liquids.



H. H. SUTRO, DEGD. v. sumo, ADMINISTRATOR. APPARATUS FOR- TREATINGLIQUIDS- APPLIGATION FILED JUNE 1, 1909.

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Patented Nov. 4, 1913.

5 SHEETS-SHEET 1.

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fig Alzomey &

W1 YWESSES H. H. sumo, mzcn.

v. sumo, ADMiNISTRATOB. APPARATUS FOR TREATING LIQUIDS.

6. APPLICATION PILI ID JUNE 1 1909. Patented NOV 4,

5 SHEETS-SHEET 2.

[NVENTOR WITNESSES: W

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H. H. sumo, 1mm).

V. SUTRO, ADMINISTRATOR. APPARATUS FOB. TREATING LIQUIDS.

1 ,077, 3 1 6' APPLIOATION FILED JUNE 1, 1909. :jPaItented NOV. 4:

5 SHEETS-SHEET 3.

[NVENTOR WITNESSES H. H. SUTRO, DEGD.

} v. sumo, ADMINISTRATOR. APPARATUS FOR TREATING LIQUIDS.

APPLICATION TILED JUNE1 1909: Patented NOV 4 a SHEETS-SHEET 4. 2 -37 46A2 29 E 0 I W i 5 I7. a W E W1 TNESSES g7 MMW W Azfomey H. H.SUTRO,'DEOD.

v sumo ADMINISTRATOR APPARATUS ron TREATING LIQUIDS.

APPLICATION FILED JUNE 1, 1909. 1,077,31 6, Patented Nov. 4, 1913.

5 SHEET SSHEET 5.

INVENTOR COEIEDRATIfiN OF NEW YQLRK.

excl-13y S'D'TEO, 6 NEW YQRK, N. Y.; VICTOR SUTRO, ADMINISTRATOR OF SAIDHARRY HEBBEET Si 'lRQ, DECEASED, ASSIGNOR'TO In M. BOOTH COMPANY, A

hPPtlELAT'GS FOR TREATING LIQUIDS.

Specification of Letters iatent.

Patented Nov. 4t, 1913.

implication filed June 1, No.9. Serial No. $99,559.

To all whom it m up concern:

Be it known that l, HARR HE BERT Studio, a citizen of the United States,and residing in the borough of Manhattan, city, county, and State of NewYork, have invented a new and useful improvement in Apparatus forTreating Liquids, of which the following is a specification.

The object of my invention is to produce iple and etiective apparatusfor treatliquids with reagents, and the particuar features of myinvention are described in the following specification and pointed outin the appended claims.

In the accompanying drawings, Figure- 1 is a front view, partly insection, of the preferred form of my apparatus. Fig. 2 is a side view ofmy apparatus, partly in section. Fig. 3 is a plan view of my improvedapparatus. Fig. at is an elevation showing the cncmical tank and pumpsby which the chemicals are supplied to the apparatus. Fig. 5 is a planview of the chemical regulating box. Fig. 6 is a sectional View of thechemical regulating box on the line 8 s, Fig. 5. Fig. 7 is a front viewof the chemical regulating box, showing the sliding gate or valve whichregulates the flow of chemis cal to the apparatus. Fig. 8 shows aportion of one of the walls of the raw liquid box and the discharge portthrough which the raw liquid is fed to the apparatus.

Similar numerals oi reference refer to corresponding parts throughoutthe accompanying drawings.

it will he understood that many changes may be made in the apparatusdescribed without departing from the spirit or scope v of my invention.

The apparatus shown in the drawing ispnrticularly adapted to thetreatment of Water. The principal tank 1 which forms the settling tankis cylindrical in form and the raw water enters the apparatus throughthe pipe 2 near the bottom of the tank 1, from which point the pipe 2extends upward, and overflows through the nozzle 3 into the wheel boxat, where it is discharged upon the water wheel 5 which is mounted upona shaft 6 and supported in hearings To one end oflthe shaft 6 isattached a beveled pinion 8 which meshes with a beveled gear 9 attachedto the upper end of a shaft 10, which is mounted in bearings 11.

Agitator arms 12 are secured to the shaft which extends through themixing tank 13, which is mounted Within the settling tank 1 and extendsdownwardly to a point near the bottom of said tank, Where it dischargesinto the settling tank'through the opening 13. The purpose of suchagitatin arms is to thoroughly mix and agitate the liquid contents ofthe tank 13. opposite end of the shaft 6 is mounted a crank 14: to whichis connected a link-rod 15, which is pivotally connected at 16 to themovable head 1ft, mounted in the guide-box 18, which is secured to thetop of the tank 1. A rod 19 is secured to the movable head 17 and passesthrough a sleeve 20 which extends'through the tank 1 and, passing belowthe bottom of the tank 1, is connected to a lever 21, which is securedat 22, to the shaft 23, whichis mounted in bearings 23. The other end ofthe lever 21 is connected to the link 24, the upper end of which ispivoted at 25 to a rod 26, which is connected at its upper end to across piece 27, to which are attached pump plungers 28 which, by theoscillation of the lever 24, are 0 aerated in the pump bodies 29 and 30;said pump bodies being mounted on the support 31. Connected with thelower part of the pump body 30 is a pipe 32 provided with a'clicck valve38, adapted to check any flow of liquid from the pump body back throughthe pipe. The other end of the pipe 32 communicates with the chemicaltank Set.

A second pipe 35 also communicates witlfl the lower end of the pump body30 and is provided with a check valve 36 adapted to prevent any flow ofliquid through the .pipe into the pump. The other end of the pipe 35communicates with the fixed level chamber 37 of the regulating box 38,the purpose of the pump 30 being to pump from the tank 34: through thepipes 3235- an excess of chemical reagent into the cham ber 37, fromwhich chamber the excess overflows over the weir 38 into the chamber 39,from which chamber it is returned through the pipe 40 to the chemicalreagent tank 3d. The chamber 37 is also provided with a discharge outlet41, at a distance of aboui two inches below the top of the weir Thisdischarge opening communicates with a chamber 42, and I have found itdesirable to make the open ng communicating between the chambers 37 and42 somewhat below the level of the weir in the chamber 37, so that aslight variation in the head of the liquid in the chamber 37 will notcause any substantial variation in the flow of liquid through thedischarge opening 41 into the chamber 42.

The chamber or tank 42 is provided with a weir 43 and with a gate 44,having a groove 45 in the lower edge thereof which is adapted to receivethe upper edge of the weir 48, and said gate is held in position by theguide 46, so that it can be moved across the upper edge of said weir. Tothis movable gate is attached a rod 47 which is connected to abell-crank 48, mounted on the fulcrum 48. To the other arm of thebellcrank 48 is attached a rod 49, the opposite end of which is attachedto a lever 50, which is pivoted to a support 51. A rod 52 is attached toone end of the lever 50 and passes upward through the tank 1 and throughthe float tank 54 through a sleeve 53, and is connected by means of asleeve 55 to a float 56 mounted in the float tank 54. Communicating withthe wheel-box 4 and the tank 54 is a pipe 57 by means of which the samewater level is maintained in the tanks 4 and 54, the result being thatwhen a greater amount of water is flowing into the box 4 and the leveltherein rises,- the level Will also rise in the box 54, which will causethe float 56 to rise, elevating the rod 52 and the end. of the lever 50,to which it is attached, elevating the rod 49 and the arm of thebell-crank to which it is attached, causing the rod 47 to shift the gate44 along the weir 43, increasing the width of the discharge opening 58which communicates with the compartment 59, and diminishing the size ofthe discharge opening 60 and causing a larger proportion of liquid inthe tank 42 to overflow into the compartment 59, from which the reagentliquid is carried by the pump 29 through the pipes 62--63 to themixingtank 13, where it is mingled with the raw water. The excess ofliquid which is discharged from the tank 42 overflows through theopening 60 into the compartment (34 from which it is returned to thechemical reagent tank 34 by means of the pipe (55.

I have provided the tanks 37 and 42 with agitators 74-75, which areoperated by means of the crank 76, to which is connected a rod 77 whichis connected to a crank 78, which is secured to the shaft 7 9 upon whichthe agitator 74 is securely mounted. Con.- nected to the agitator 74 isa bar which is connected to the agitator 75.

I provide my apparatus with a lime slaking tank 66, which has adischarge pipe 67 communicating with the chemical reagent tank 34. Thedischarge opening is provided with a plug 68 which can be removed atpleasure. This tank 66 is adapted to receive he unslaked lime which isslaked by means of water supplied through the pipe which communicateswith the tank 1 and is provided with a cook 70. The settling tank 1 isprovided with the usual filter 71. A chute 73 conveys the water from thewheel box to the mixing-tank 13 by way of a dis charge opening 72 in oneof the Walls of the wheel box as shown in Fig. 8, such discharge openingbeing of such shape that the flow of water therethrough will be indirect propor-- tion to the height of the Water above atired point.

If we assume this fixed point to be on a level with the bottom of theorifice the curved side of the orifice assumes a shape represented bythe equation the notation being the ordinary one used in analyticgeometry; a; and y being referred to rectangular coordinates; 77 beingan arbit-rary constant which determines the size of the ratio betweenthe head of the water and. the corresponding discharge; a be 3.l4159+ 9being the acceleration of gi ity, usually taken at 32.16 at sea level;an 0 being the coeflicient of discharge for usually taken at .62. Thebottom 5 maining side of the orifice are fora axes of X and Y,respectively. The r.

point may also be assumed at some other level than at the level of thebottom the orifice. We then obtain a shape of orifice differing from theone described above, which as already stated is defined by the curve Ifwe assume the fixed point to be at a level above the bottom of theorifice (a representing any convenient height) the equation of thecurved side of the orifice comes It is this modified form of orifice llprefer to employ.

Referring to Fig. 8, U this orifice. XX and YY are the of coordinates,()A a, OL l, while 0, and a" respectively, have their already namedsignificance and value. The discha water through this orifice isproportional to the head of water above the point located at thedistance above the bottom AK of the orifice; but this proportionality islost as soon as the water level drops lower than the level XX. inpractice it make the ran ers height a. small as compared with the totalheight of orifice to be utilized and it may, in any particular instance,be madeas small as desired and the proportional relation of head anddischarge will still hold good for levels abovelevel XX. From theforegoing, it will readily be understood that owing to the fundamentalproperty of the orifice each inch of increased head, for example, abovethe head at VV induces fixed increment in the amount of water dischargedthrough the said orifice and that the several increments are mutuallyequal. Other shapes of orifice giving similar results may also be used.

The operation of my apparatus is as follows: Raw water is dischargedinto the wheel box through the nozzle 3 upon the water wheel 5, causingit to rotate. The rotation of the shaft 6 is imparted through the gears8 and 9 to the shaft 10, causing it and its agitator arms 12 to rotatein the mixing tank. As the liquid rises or falls in the wheel box andcorrespondingly in the float tank 54, (in exact proportion to the amountof water flowing), the float rises or falls, and through the rod 52 andthe various connections heretofore described, moves the gate 44 acrossthe weir 43, in direct ratio with its rise or fall, increasing ordecreasing the size of the discharge opening at 58 from the chamber 42into the compartment 59, so that the chemical reagent discharged intothis compartment and carried by the pump 29 to the mixing tank to minglewith the---- raw water will be in exact proportion to the amount ofwater entering such tank for treatment. At the same time, through thepump 30, a surplus of chemical reagent will be carried to the chamber37. Owing to the wide overflow weir 38 of this chamber, the

level of reagent therein remains substantially fixed and the excess ofreagent will overfiow over the weir 3S and return to the chemicalreagent. tank; a portion of the liquid from the chamber 37, as abovedescribed, flows through the opening 411 into the chamber 1-2, in whicha constant level is maintained, the slight rise and fall of the.

liquid in the chamber 37 having no appreciable cil ect on the quantityof liquid which is discharged into the chamber 42, as the dischargeopening from the chamber 37 is considerably below the level of theliquid in chamber 37, as already described. By this construction anysubstantial variation of liquid level in the chamber 42, resulting fromthe pumping operations is avoided, and an accurate constant levelmaintained therein. By the means described I am able to control withgreat accuracy the amount of liquid discharged into the compartment 59and to supply from this compartment the chemical reagent which, undervarying con ditions of operation, is always practically in exactproportion to the amount of water flowing from the wheel box to themixing tank, :50 long as a: certain minimum flow is exceeded,

In treating a water with a mixture of soda ash solution and milk of limethe volume of V reagent solutionto be fed is small relative to theamount of water to be treated. The

problem is to feed it in proportion to, the flow of water to be treated.Under practical conditions of operation an absolutely fixed level ofreagent cannot be maintained for any lengthy period. My endeavor hasferences (already small) of level in chamber 37, since the influence ofsuch ditterences of.

level on the discharge from a submerged orifice diminishes rapidly asthe depth of submcrgence of the orifice increases. The resultingdifferences in level in the chamber 42, while of course they exist, arepractically imperceptible and negligible. Furthermore, as the reagentliquid is not a clear solution, but on the contrary contains verymuchsolid matter in suspension, I select that shape for. the orificeell, which is least liable to become clogged or obstructed, namely, thecircularform. The reagent stream discharged from a circular orifice,however, does not readily lend itself to be divided proportionally-tothe flow of. water. To accomplish this division to the best advantage,therefore, I provide the second orifice, in this case a weir,

of the shape best adapted toproportionalv division of the streamer aprondischargedthrough it, namely the horizontally elon In practice thestream dis-1 charged through the small circular orifice gated form.

subsequently fiows uniformly over a weir crest at 43 wlth a net lengthof some three inches, being thus easily divided by the slide 44: inexact proportion to the flow of raw water as described.

Having described my apparatus, which I claim as new and desire to secureby Letters- Patent is:

1. In an apparatus for treating flowing liquids with reagents, a sourceof reagent supply, a weir, means for discharging the reagent over theweir in a stream, a movable deflector automatically actuated by an increase or decrease in the flow of liquid and adapted to cut oil fromsuch stream of re- 99 in discharge through said orifice due to Clll'agent an amount of reagent in direct proportion to the flow of liquid tobe treated,

and means for supplying the reagent so cut 03 to the liquid to betreated.

2. In an apparatus for treating liquids withreagents, a source ofreagent supply,

means for discharging the reagent in a horizontally elongated apron orstream at a provided with an overflow weir, and witha submerged orificecommunicating between said chamber and a second chamber, a dischargeweir for said second chamber, a movable member traveling on saiddischarge weir and adapted to cut off a percentage of the flow ofreagent over said discharge weir and means for supplying the percentageof reagent so cut 0 treated.

4. In an apparatus for treating a liquid with a reagent, a liquidcontainer provided with a discharge orifice therein, of suchproportional dimensions that the flow of liquid therethrough will be indirect proportion to the height of the liquid above a fixed point,

to the liquid to be and means controlled by the height of liquid Tflowing through said orifice for regulating the amount of reagent fed tothe liquid.

5-. In anapparatus for treating liquids, a compartment adapted toreceive the raw liquid, provided with a discharge orifice of suchproportional dimensions that the fiow of liquid therethrough will be indirect proportion to the height of liquid above a certam fixed oint ofthef'orifice, a chemical supply tan means for maintaining a uniformlevel therein, such chemical supply tank being provided with a weir overwhich the chemical reagent overflows, and a gate adapted to be shiftedalong the weir and increase or decrease the flow of said chemicalreagent to the tank from which it is supplied to the raw liquid indirect proportion to the height of liquid in said raw water compartment.

6. In an apparatus for trea tin liquids, a source of reagent supply,means or causmg an excessive flow of reagent from the source of supply,means for diverting from such excessive flow of reagent a predeterminedflow of reagent and means for automatically diverting from suchpredetermined flow of reagent an amount which shall be in directproportion to the flow of liquid to be treated.

7. In apparatus for treating liquids, a source of reagent supply, meansfor causmg an excessive fiow of reagent from such source of supply,means for diverting from such excessive how a predetermined flow ofreagent, means actuated by the liquid to be treated for diverting fromsuch predetermined flow of reagent to the liquid to be treated an amountof reagent in direct proportion to the fiow of liquid to be treated.

8. In an apparatus for treating of liquids a compartment adapted toreceive raw liquid provided with an orifice through which raw liquid issupplied to the apparatus, a second compartment provided with a secondorifice through which reagent is delivered to the apparatus, a movablemember adapted to be shifted relatively to the second orifice and thuscontrolling the quantity of reagent supplied to the apparatus and automaticmeans controlled and actuated by the amount of liquid in said firstcompartment adapted to shift said movable member in direct proportion tothe liquid supplied to the apparatus.

9. In apparatus for treating liquids, means for supplying raw liquid tothe apparatus and means for discharging treated liquid therefrom, areagent container having an orifice through which reagent is de liveredto the apparatus, a movable member adapted to be shifted relatively tosaid orifice and thus control the quantity of reagent supplied to theapparatus, and auto matic means controlled and actuated by the liquidsupplied to the apparatus adapted to shift said movable member indirectproportion to the liquid supplied to the apparatus.

Signed at the b'orou h of Manhattan, in

the city, county, and tate of New York,

this 7th day of May, A. D. 1909.

HARRY HERBERT SUTRO. Witnesses Eonnnr V. NELsoN, EMORY L. Gnorr.

(Estates of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. (3.

